Machine for making drain-pipes



BRADFORD S. PIERCE, OF NEW BEDFORD, AND MASON R. PIERCE, OF MANSFIELD', MASSACHUSETTS.

MACHINE FOR MAKING DRAIN-PIPES.

Specification forming part of Letters Patent N o. 23,703, dated April 19, 1859; Ressued February 28,

To all 'whom tt may concern.'

Be it known that we, BRADFORD S. PIERCE, of New Bedford, and MASON R. PIERCE, of Mansfield, both in the county of Bristol, State of Massachusetts, have invented a new and useful Improvement in Machines for the Manufacture of a Pipe or Tube to be Used for Drains or Flues; and we do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making part of this specification, in which- Figure l is a perspective view. Fig. 2 is a longitudinal elevation. Fig. 3 is a plan. Fig. t is a core reliever.

To enable others to understand the manner of constructing and operating our machine we proceed to describe the same, with reference to the figures and letters.

Letters A A, represent a rotary platform, letter A, a cistern, letter B a water pipe, let-- ter C, a faucet, letter D a hopper, letter E a shaft, letters F and G the mixing pins and float, letter H the crank connected with the mixing shaft, letter I a stop, letter J a pin, letter K a revolving cylinder, letter L a spout, letter M a gage, letter N the double rack guides, letter O the double rack, letter P the concave piston; letter Q a geared wheel, let-ter It a pinion, letter S a longitudinal pinion, letter T a pinion shaft, letter U a crank, letter V a single rack, letters vVV X, a wheel and pinion, letters Y, Z the driving and driven shaft, letter a a hand wheel used to move the rotary platform, letter Z) a shipper used to disconnect the catch c from the platform, letter Z is a driving crank, letter c represents the eight perforations in the platform admissive of the different sizes of core socket, letter' f the core socket, letter g an upright post with a lever 71, attached, letter 71 a plunger, letter j a hand working the lever L, letter 7c the interior section of the pipe, letter Z the two pieces of wood or metal attached to the metallic case, letter m` the five conical rolls upon which the rotary platform revolves, letter n a clamp or fastener to hold the case firmly together, letter 0 a bevel ring which forms the concaved end of the pipe, letter p is a stay which holds the core at an equal distance from the case while the mold is being lled, letter ris a core constructed of wood or metal, letter s is a metallic case, letter is a circular hopper to aid in 'filling the mold, letter u an opening in the revolving cylinder, letter o two sections of pipe connected, letters a a represent the thickness of the pipe.

To operate our machine we place the ingredients of which the pipe is to be made in the cylinder K, in its proportional parts we then mix them together by turning the crank H, when this is completed we upset the cylinder and empty its contents into the spout L where it is removed with a shovel to the hopper, which is placed upon the top of the mold. The concave piston is at intervals forced upon the ingredients by means of the crank U, several times while the mold is being filled. The last stroke of the piston forms the convex end of the pipe which is an exact counter shape to that formed by the bevel ring o. The mold being filled the hand wheel a is, revolved to convey the filled mold toward the core reliever and bring the second mold in a position, beneath the piston to be filled as before and the same operation is repeated with the entire set of molds. Then the first mold comes directly under the core reliever the crank l is then used to force down the rack or plunger, upon the core P and thrust the same through the socket 0 and platform into a pit below. The platform is then revolved to fill the next mold. hen the first filled mold is brought in the position between the reliever and hopper it is removed to be discharged, when it may be replaced.

Our mold may be used without the aid of the other parts of the machine as shown at Fig. 4. The mold with its socket is placed upon a suitable level base when the ingredients after being properly mixed can be filled in and rammed by hand. And the core is afterward relieved or discharged by the aid of a lever and pendent bar as shown in Fig. 4. In order to keep the top of the core in proper position during the filling process the double ring clasp c, on which a hopper may be placed, is applied to the top of the mold and core pin.

Having thus described our improvement in pipe machines, what We claim and desire to secure by Letters Patent isl. The arrangement of the mixing apparatus, pressing and core relieving devices above the platform for conveying the molds in the manner and for the purpose specified.

Q. Also the arrangement of the core socket upon the revolving disk to receive the core and the mold, With a provision for discharging the core through the platform all in the lo manner and for the purpose specified.

- BRADFORD S. PIERCE.

MASON R. PIERCE. Titnesses ISAAC T. FISHER, SILAS H. HOWLAND. 

